full brass cased 12 gauge in a semi auto?

i have always wanted to try my hand at seeing if i can get some full solid brass cased shells of 12 gauge to feed reliably in a magazine fed semi auto shotgun- more precisely a AK (saiga 12)

ADG Brass? Edited: Details and measurements

How do low brass and high brass shotgun shells differ? - Quora

Who shoots 12 ga. Round Balls

dillon square bulging cases, and reccomendations?

First 9mm ammo Ive seen under 30 cents a round, Page 2

ADCO Best Arms BA312-PG 12 Gauge Semi Auto Shotgun 20 Barrel 3 Chamber 5 Rounds Tactical Front Sight/Ghost Ring Rear Synthetic Pistol Grip Stock Matte Black [FC-733315100287] - Cheaper Than Dirt

Oklahoma made..Spartan Auto Knives???

Pallet of Freedom Munitions Ammo

Back To Basics: Cartridge Cases

Winchester SX4 Waterfowl Hunter Semi-Auto Shotgun in TrueTimber DRT

Northern Tool in Tulsa - Long Gun Cases $9.99

Supreme Versatility: The 12-Gauge Shotshell

Citadel Boss-25 12 Gauge AR Style Semi Auto Shotgun with American Flag Finish for Sale Online

Jerry's Outdoors Supply in Tulsa